Home / 135,722.40-203,581.20-55,743.04

Finding the Fourth Proportional to 135,722.40, 203,581.20 and 55,743.04

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Solution

The fourth proportional to 135,722.40, 203,581.20 and 55,743.04 is: 83,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,722.40 : 203,581.20 = 55,743.04 : x
  2. Step 2: Convert to fraction form
    135,722.40/203,581.20 = 55,743.04/x
  3. Step 3: Cross multiply
    135,722.40x = 203,581.20 × 55,743.04
  4. Step 4: Simplify right side
    135,722.40x = 11,348,234,974.85
  5. Step 5: Solve for x
    x = 11,348,234,974.85/135,722.40
  6. Step 6: Final answer
    x = 83,613.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.